Solve the linear inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line. ?  - 

A. (-?, -2]

B.

C. (-?, 2]

D. [2, ?)


Answer: A

Mathematics

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Find all the polar coordinates of the point.(4, ?/4)

A. (4, ?/4 + 2n?), (-4, -?/4 + 2n?) B. (4, ?/4 + 2n?), (-4, 3?/4 + 2n?) C. (4, ?/4 + 2n?), (-4, -3?/4 + 2n?) D. (4, ?/4 + 2n?), (4, -3?/4 + 2n?)

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Match the surface show below to the graph of its level curves.

A.

B.

C.

D.

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Using Thevenin's Theorem, what is fCO of an equivalent circuit for a lowpass filter when R1 = 5.6 Kê, R2 = 6.8 Kê, R3 = 10 Kê, and C = 1200 pF.



a. 15.1 KHz
b. 11.7 KHz
c. 56.4 KHz
d. 8.7 KHz
e. 6.2 KHz

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Answer the question.Which of the following statements is true concerning the graph of f(t) = tan t?

A. The graph is symmetric about the x-axis. B. The graph is symmetric about the y-axis. C. The graph contains no symmetry. D. The graph is symmetric about the origin.

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